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/* SPDX-License-Identifier: GPL-2.0-or-later / / FS-Cache tracepoints * * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) / #undef TRACE_SYSTEM #define TRACE_SYSTEM fscache #if !defined(_TRACE_FSCACHE_H) \|\| defined(TRACE_HEADER_MULTI_READ) #define _TRACE_FSCACHE_H #include <linux/fscache.h> #include <linux/tracepoint.h> / * Define enums for tracing information. / #ifndef __FSCACHE_DECLARE_TRACE_ENUMS_ONCE_ONLY #define __FSCACHE_DECLARE_TRACE_ENUMS_ONCE_ONLY enum fscache_cookie_trace { fscache_cookie_collision, fscache_cookie_discard, fscache_cookie_get_acquire_parent, fscache_cookie_get_attach_object, fscache_cookie_get_reacquire, fscache_cookie_get_register_netfs, fscache_cookie_put_acquire_nobufs, fscache_cookie_put_dup_netfs, fscache_cookie_put_relinquish, fscache_cookie_put_object, fscache_cookie_put_parent, }; enum fscache_page_trace { fscache_page_cached, fscache_page_inval, fscache_page_maybe_release, fscache_page_radix_clear_store, fscache_page_radix_delete, fscache_page_radix_insert, fscache_page_radix_pend2store, fscache_page_radix_set_pend, fscache_page_uncache, fscache_page_write, fscache_page_write_end, fscache_page_write_end_pend, fscache_page_write_end_noc, fscache_page_write_wait, fscache_page_trace__nr }; enum fscache_op_trace { fscache_op_cancel, fscache_op_cancel_all, fscache_op_cancelled, fscache_op_completed, fscache_op_enqueue_async, fscache_op_enqueue_mythread, fscache_op_gc, fscache_op_init, fscache_op_put, fscache_op_run, fscache_op_signal, fscache_op_submit, fscache_op_submit_ex, fscache_op_work, fscache_op_trace__nr }; enum fscache_page_op_trace { fscache_page_op_alloc_one, fscache_page_op_attr_changed, fscache_page_op_check_consistency, fscache_page_op_invalidate, fscache_page_op_retr_multi, fscache_page_op_retr_one, fscache_page_op_write_one, fscache_page_op_trace__nr }; #endif / * Declare tracing information enums and their string mappings for display. / #define fscache_cookie_traces \ EM(fscache_cookie_collision, "COLLISION") \ EM(fscache_cookie_discard, "DISCARD") \ EM(fscache_cookie_get_acquire_parent, "GET prn") \ EM(fscache_cookie_get_attach_object, "GET obj") \ EM(fscache_cookie_get_reacquire, "GET raq") \ EM(fscache_cookie_get_register_netfs, "GET net") \ EM(fscache_cookie_put_acquire_nobufs, "PUT nbf") \ EM(fscache_cookie_put_dup_netfs, "PUT dnt") \ EM(fscache_cookie_put_relinquish, "PUT rlq") \ EM(fscache_cookie_put_object, "PUT obj") \ E_(fscache_cookie_put_parent, "PUT prn") #define fscache_page_traces \ EM(fscache_page_cached, "Cached ") \ EM(fscache_page_inval, "InvalPg") \ EM(fscache_page_maybe_release, "MayRels") \ EM(fscache_page_uncache, "Uncache") \ EM(fscache_page_radix_clear_store, "RxCStr ") \ EM(fscache_page_radix_delete, "RxDel ") \ EM(fscache_page_radix_insert, "RxIns ") \ EM(fscache_page_radix_pend2store, "RxP2S ") \ EM(fscache_page_radix_set_pend, "RxSPend ") \ EM(fscache_page_write, "WritePg") \ EM(fscache_page_write_end, "EndPgWr") \ EM(fscache_page_write_end_pend, "EndPgWP") \ EM(fscache_page_write_end_noc, "EndPgNC") \ E_(fscache_page_write_wait, "WtOnWrt") #define fscache_op_traces \ EM(fscache_op_cancel, "Cancel1") \ EM(fscache_op_cancel_all, "CancelA") \ EM(fscache_op_cancelled, "Canclld") \ EM(fscache_op_completed, "Complet") \ EM(fscache_op_enqueue_async, "EnqAsyn") \ EM(fscache_op_enqueue_mythread, "EnqMyTh") \ EM(fscache_op_gc, "GC ") \ EM(fscache_op_init, "Init ") \ EM(fscache_op_put, "Put ") \ EM(fscache_op_run, "Run ") \ EM(fscache_op_signal, "Signal ") \ EM(fscache_op_submit, "Submit ") \ EM(fscache_op_submit_ex, "SubmitX") \ E_(fscache_op_work, "Work ") #define fscache_page_op_traces \ EM(fscache_page_op_alloc_one, "Alloc1 ") \ EM(fscache_page_op_attr_changed, "AttrChg") \ EM(fscache_page_op_check_consistency, "CheckCn") \ EM(fscache_page_op_invalidate, "Inval ") \ EM(fscache_page_op_retr_multi, "RetrMul") \ EM(fscache_page_op_retr_one, "Retr1 ") \ E_(fscache_page_op_write_one, "Write1 ") / * Export enum symbols via userspace. / #undef EM #undef E_ #define EM(a, b) TRACE_DEFINE_ENUM(a); #define E_(a, b) TRACE_DEFINE_ENUM(a); fscache_cookie_traces; / * Now redefine the EM() and E_() macros to map the enums to the strings that * will be printed in the output. / #undef EM #undef E_ #define EM(a, b) { a, b }, #define E_(a, b) { a, b } TRACE_EVENT(fscache_cookie, TP_PROTO(struct fscache_cookie cookie, enum fscache_cookie_trace where, int usage), TP_ARGS(cookie, where, usage), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(struct fscache_cookie , parent ) __field(enum fscache_cookie_trace, where ) __field(int, usage ) __field(int, n_children ) __field(int, n_active ) __field(u8, flags ) ), TP_fast_assign( __entry->cookie = cookie; __entry->parent = cookie->parent; __entry->where = where; __entry->usage = usage; __entry->n_children = atomic_read(&cookie->n_children); __entry->n_active = atomic_read(&cookie->n_active); __entry->flags = cookie->flags; ), TP_printk("%s c=%p u=%d p=%p Nc=%d Na=%d f=%02x", __print_symbolic(__entry->where, fscache_cookie_traces), __entry->cookie, __entry->usage, __entry->parent, __entry->n_children, __entry->n_active, __entry->flags) ); TRACE_EVENT(fscache_netfs, TP_PROTO(struct fscache_netfs netfs), TP_ARGS(netfs), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __array(char, name, 8 ) ), TP_fast_assign( __entry->cookie = netfs->primary_index; strncpy(__entry->name, netfs->name, 8); __entry->name[7] = 0; ), TP_printk("c=%p n=%s", __entry->cookie, __entry->name) ); TRACE_EVENT(fscache_acquire, TP_PROTO(struct fscache_cookie cookie), TP_ARGS(cookie), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(struct fscache_cookie , parent ) __array(char, name, 8 ) __field(int, p_usage ) __field(int, p_n_children ) __field(u8, p_flags ) ), TP_fast_assign( __entry->cookie = cookie; __entry->parent = cookie->parent; __entry->p_usage = atomic_read(&cookie->parent->usage); __entry->p_n_children = atomic_read(&cookie->parent->n_children); __entry->p_flags = cookie->parent->flags; memcpy(__entry->name, cookie->def->name, 8); __entry->name[7] = 0; ), TP_printk("c=%p p=%p pu=%d pc=%d pf=%02x n=%s", __entry->cookie, __entry->parent, __entry->p_usage, __entry->p_n_children, __entry->p_flags, __entry->name) ); TRACE_EVENT(fscache_relinquish, TP_PROTO(struct fscache_cookie cookie, bool retire), TP_ARGS(cookie, retire), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(struct fscache_cookie , parent ) __field(int, usage ) __field(int, n_children ) __field(int, n_active ) __field(u8, flags ) __field(bool, retire ) ), TP_fast_assign( __entry->cookie = cookie; __entry->parent = cookie->parent; __entry->usage = atomic_read(&cookie->usage); __entry->n_children = atomic_read(&cookie->n_children); __entry->n_active = atomic_read(&cookie->n_active); __entry->flags = cookie->flags; __entry->retire = retire; ), TP_printk("c=%p u=%d p=%p Nc=%d Na=%d f=%02x r=%u", __entry->cookie, __entry->usage, __entry->parent, __entry->n_children, __entry->n_active, __entry->flags, __entry->retire) ); TRACE_EVENT(fscache_enable, TP_PROTO(struct fscache_cookie cookie), TP_ARGS(cookie), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(int, usage ) __field(int, n_children ) __field(int, n_active ) __field(u8, flags ) ), TP_fast_assign( __entry->cookie = cookie; __entry->usage = atomic_read(&cookie->usage); __entry->n_children = atomic_read(&cookie->n_children); __entry->n_active = atomic_read(&cookie->n_active); __entry->flags = cookie->flags; ), TP_printk("c=%p u=%d Nc=%d Na=%d f=%02x", __entry->cookie, __entry->usage, __entry->n_children, __entry->n_active, __entry->flags) ); TRACE_EVENT(fscache_disable, TP_PROTO(struct fscache_cookie cookie), TP_ARGS(cookie), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(int, usage ) __field(int, n_children ) __field(int, n_active ) __field(u8, flags ) ), TP_fast_assign( __entry->cookie = cookie; __entry->usage = atomic_read(&cookie->usage); __entry->n_children = atomic_read(&cookie->n_children); __entry->n_active = atomic_read(&cookie->n_active); __entry->flags = cookie->flags; ), TP_printk("c=%p u=%d Nc=%d Na=%d f=%02x", __entry->cookie, __entry->usage, __entry->n_children, __entry->n_active, __entry->flags) ); TRACE_EVENT(fscache_osm, TP_PROTO(struct fscache_object object, const struct fscache_state state, bool wait, bool oob, s8 event_num), TP_ARGS(object, state, wait, oob, event_num), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(struct fscache_object , object ) __array(char, state, 8 ) __field(bool, wait ) __field(bool, oob ) __field(s8, event_num ) ), TP_fast_assign( __entry->cookie = object->cookie; __entry->object = object; __entry->wait = wait; __entry->oob = oob; __entry->event_num = event_num; memcpy(__entry->state, state->short_name, 8); ), TP_printk("c=%p o=%p %s %s%sev=%d", __entry->cookie, __entry->object, __entry->state, __print_symbolic(__entry->wait, { true, "WAIT" }, { false, "WORK" }), __print_symbolic(__entry->oob, { true, " OOB " }, { false, " " }), __entry->event_num) ); TRACE_EVENT(fscache_page, TP_PROTO(struct fscache_cookie cookie, struct page page, enum fscache_page_trace why), TP_ARGS(cookie, page, why), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(pgoff_t, page ) __field(enum fscache_page_trace, why ) ), TP_fast_assign( __entry->cookie = cookie; __entry->page = page->index; __entry->why = why; ), TP_printk("c=%p %s pg=%lx", __entry->cookie, __print_symbolic(__entry->why, fscache_page_traces), __entry->page) ); TRACE_EVENT(fscache_check_page, TP_PROTO(struct fscache_cookie cookie, struct page page, void val, int n), TP_ARGS(cookie, page, val, n), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(void , page ) __field(void , val ) __field(int, n ) ), TP_fast_assign( __entry->cookie = cookie; __entry->page = page; __entry->val = val; __entry->n = n; ), TP_printk("c=%p pg=%p val=%p n=%d", __entry->cookie, __entry->page, __entry->val, __entry->n) ); TRACE_EVENT(fscache_wake_cookie, TP_PROTO(struct fscache_cookie cookie), TP_ARGS(cookie), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) ), TP_fast_assign( __entry->cookie = cookie; ), TP_printk("c=%p", __entry->cookie) ); TRACE_EVENT(fscache_op, TP_PROTO(struct fscache_cookie cookie, struct fscache_operation op, enum fscache_op_trace why), TP_ARGS(cookie, op, why), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(struct fscache_operation , op ) __field(enum fscache_op_trace, why ) ), TP_fast_assign( __entry->cookie = cookie; __entry->op = op; __entry->why = why; ), TP_printk("c=%p op=%p %s", __entry->cookie, __entry->op, __print_symbolic(__entry->why, fscache_op_traces)) ); TRACE_EVENT(fscache_page_op, TP_PROTO(struct fscache_cookie cookie, struct page page, struct fscache_operation op, enum fscache_page_op_trace what), TP_ARGS(cookie, page, op, what), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(pgoff_t, page ) __field(struct fscache_operation , op ) __field(enum fscache_page_op_trace, what ) ), TP_fast_assign( __entry->cookie = cookie; __entry->page = page ? page->index : 0; __entry->op = op; __entry->what = what; ), TP_printk("c=%p %s pg=%lx op=%p", __entry->cookie, __print_symbolic(__entry->what, fscache_page_op_traces), __entry->page, __entry->op) ); TRACE_EVENT(fscache_wrote_page, TP_PROTO(struct fscache_cookie cookie, struct page page, struct fscache_operation op, int ret), TP_ARGS(cookie, page, op, ret), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(pgoff_t, page ) __field(struct fscache_operation , op ) __field(int, ret ) ), TP_fast_assign( __entry->cookie = cookie; __entry->page = page->index; __entry->op = op; __entry->ret = ret; ), TP_printk("c=%p pg=%lx op=%p ret=%d", __entry->cookie, __entry->page, __entry->op, __entry->ret) ); TRACE_EVENT(fscache_gang_lookup, TP_PROTO(struct fscache_cookie cookie, struct fscache_operation op, void results, int n, pgoff_t store_limit), TP_ARGS(cookie, op, results, n, store_limit), TP_STRUCT__entry( __field(struct fscache_cookie , cookie ) __field(struct fscache_operation , op ) __field(pgoff_t, results0 ) __field(int, n ) __field(pgoff_t, store_limit ) ), TP_fast_assign( __entry->cookie = cookie; __entry->op = op; __entry->results0 = results[0] ? ((struct page )results[0])->index : (pgoff_t)-1; __entry->n = n; __entry->store_limit = store_limit; ), TP_printk("c=%p op=%p r0=%lx n=%d sl=%lx", __entry->cookie, __entry->op, __entry->results0, __entry->n, __entry->store_limit) ); #endif /* _TRACE_FSCACHE_H / / This part must be outside protection */ #include <trace/define_trace.h>

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